(a) Court approval required A record must not be filed under seal without a court order. The court must not permit a record to be filed under seal based solely on the agreement or stipulation of the parties. (b) Motion or application to seal a record (1)Motion or application required A party requesting that a record be filed under seal must file a motion or an application for an order sealing the record. The motion or application must be accompanied by a memorandum and a declaration containing facts